Optibac "For Those Taking Antibiotics" is a probiotic food supplement formulated to preserve intestinal balance during antibiotic treatments. Scientifically tested strains: The selected microorganisms resist the environment of the digestive system and reach the intestine in an active state, promoting the balance of the intestinal flora. Antibiotic Friendly: Specifically designed to be taken during antibiotic treatment. Vegan and gluten free friendly: Meets quality standards for those with specific diets. Take 1 capsule daily, preferably with breakfast. Take every day during the course of antibiotic treatment, and for a few days afterwards or until the bottle is empty. May be used for extended periods of time if antibiotic treatment is prolonged. Keep out of reach of children Store in a cool, dry place.